TEMO 10 pc FELT Burrs Wool Bob Polishing Grinding #12 Bullet Shape 10mm 3/8 inch with 1/8 inch (3mm) Shank for DREMEL and Compatible Rotary Tool GC Rotary tool accessories, felt-tipped, made of top quality wool Smooth and refine surfaces by using these felt buffs to polish metal, ceramics and glass. Ideal for smoothing interior surfaces, there are 10 interchangeable pieces for the rotary grinding and polishing tool. 10 pieces Bullet Shape head: 10mm (3/8") felt diameter, 18mm (11/16") felt length All with 1/8" (3.175mm) Mandrel